[Samba] NSS_BUFLEN_PASSWD on FreeBSD

[Andrew Bartlett]

On Tue, 2020-06-30 at 19:50 +0200, Peter Eriksson via samba wrote:
> Compilation fails on FreeBSD due to NSS_BUFLEN_PASSWD not being
> defined. This simple patch “fixes” that:
> 
> --- samba-4.11.10/lib/util/util_paths.c.ORIG    2020-06-30
> 19:33:05.577758000 +0200
> +++ samba-4.11.10/lib/util/util_paths.c 2020-06-30 19:33:29.561225000
> +0200
> @@ -64,6 +64,10 @@
>         return get_dyn_SHLIBEXT();
>  }
>  
> +#ifndef NSS_BUFLEN_PASSWD
> +#define NSS_BUFLEN_PASSWD 2048
> +#endif
> +
>  static char *get_user_home_dir(TALLOC_CTX *mem_ctx)
>  {
>         struct passwd pwd = {0};
> 
> 
> One might wanna change the code to use a dynamically allocated ‘buf’
> and have a loop around getpwnam_r() that checks for ERANGE and retry
> with a bigger ‘buf’ though.
> (Same basically goes for all the get{pw,gr}xx_r() functions - not
> 100% important for getpw unless you have extremely long path’s or
> silly long full names but the getgrxx() calls might need it for
> groups with huge membership lists…)

See https://bugzilla.samba.org/show_bug.cgi?id=14415

Andrew Bartlett

-- 
Andrew Bartlett                       https://samba.org/~abartlet/
Authentication Developer, Samba Team  https://samba.org
Samba Developer, Catalyst IT          
https://catalyst.net.nz/services/samba